目前天然方解石紧缺，在实际使用过程中存在一些缺陷和限制。为缓解现行偏光棱镜材料紧缺的压力，对新型的双折射α-BBO替代材料进行了设计研究，通过光在界面上的全反射原理设计了李普奇式及格兰-泰勒式偏光棱镜，给出了它们相应的结构角取值范围及对应的视场角大小，并重点设计得出了230nm~800nm宽频情况下相应的理论值。结果表明，这种材料在紫外波段适用性很好，同时具有大的视场角。该工作为进一步研究开发新型材料的偏光器件打下了基础。

At present, it is a considerable shortage of natural calcite and it has some defects and restrictions in application. In order to alleviate the shortage of polarized prism material，the new alternative birefringence material——α-BBO was studied. Based on the light total reflection principle at the interface, the polarizing prisms with Lippich and Glan-Taylor style were designed. The value range of their structural angles and corresponding field angles, in particular the corresponding theoretical value in the frequency band from 230nm to 800nm were put forward. The result shows that this kind of material has good applicability and larger view angles in the ultraviolet wave band.This work lays the foundation for further research and development of new material polarized devices.